2972978 has 8 divisors (see below), whose sum is σ = 4471068. Its totient is φ = 1482624.

The previous prime is 2972971. The next prime is 2973001. The reversal of 2972978 is 8792792.

It can be written as a sum of positive squares in 2 ways, for example, as 2699449 + 273529 = 1643^2 + 523^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (2972971) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 851 + ... + 2582.

2^2972978 is an apocalyptic number.

2972978 is a deficient number, since it is larger than the sum of its proper divisors (1498090).

2972978 is a wasteful number, since it uses less digits than its factorization.

2972978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3868.

The product of its digits is 127008, while the sum is 44.

The square root of 2972978 is about 1724.2325829191. The cubic root of 2972978 is about 143.7906229237.

The spelling of 2972978 in words is "two million, nine hundred seventy-two thousand, nine hundred seventy-eight".